3DPrinting

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3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.

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Print in place ratchet design (lemmy.ml)

submitted 2 months ago by EmilieEvans@lemmy.ml to c/3dprinting@lemmy.world

15 comments fedilink hide all child comments

After half a dozen iterations, this was the first reasonably working, acceptable feeling, and good-sounding ratchet mechanism.

allows clockwise rotation blocks counterclockwise rotation

design features:

allows for a large inner bore (e.g. rotary encoder shaft or 5.2mm screwdriver bit)
printable with 0.4mm nozzle
2cm diameter
no assembly required. Print in place.

To get a full ratchet: mirror the assembly and add a mechanism/part that pushes one of the springs out. In neutral both leavers are engaged and the ratchet is completely locked.

Btw. Good luck copying it without going through half a dozen of iterations. Going from it barely works to this isn't easy. For my part: Version 5 was working and close to the final design. It took another 10 rounds to get it usable and from there some more to fine-tune it.

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[–] deFrisselle@lemmy.sdf.org 2 points 2 months ago* (last edited 2 months ago) (1 children)

3D Printing & Using NASA Space (Ratcheting) Wrench Here on Earth - @Barnacules

https://youtu.be/mvr9a4aZlmU?si=wUzmfNACcnkunRBv

https://nasa3d.arc.nasa.gov/detail/wrench-mis

[–] PipedLinkBot@feddit.rocks 1 points 2 months ago

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